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Simplifying 2x + -5y + -20 = 0 Reorder the terms: -20 + 2x + -5y = 0 Solving -20 + 2x + -5y = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 2x + 20 + -5y = 0 + 20 Reorder the terms: -20 + 20 + 2x + -5y = 0 + 20 Combine like terms: -20 + 20 = 0 0 + 2x + -5y = 0 + 20 2x + -5y = 0 + 20 Combine like terms: 0 + 20 = 20 2x + -5y = 20 Add '5y' to each side of the equation. 2x + -5y + 5y = 20 + 5y Combine like terms: -5y + 5y = 0 2x + 0 = 20 + 5y 2x = 20 + 5y Divide each side by '2'. x = 10 + 2.5y Simplifying x = 10 + 2.5y

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